{"instruction": "You are an expert in named entity recognition. Please extract entities that match the schema definition from the input. Return an empty list if the entity type does not exist. Please respond in the format of a JSON string.", "schema": ["Chemical"], "input": "Whereas [ Ru ( phen ) ( 3 ) ] ( 2 + ) * does not show direct DNA cleavage , the deprotonated form of 1H ( 2 ) O ( 2 + ) * does via a proton - coupled electron transfer ( PCET ) mechanism where the peripheral basic oxygen sites act as the proton acceptor ."}
{"Chemical": ["[ Ru ( phen ) ( 3 ) ] ( 2 + )", "1H ( 2 ) O ( 2 + )", "oxygen"]}